python define an empty list code example

Example 1: python list empty

my_list = list()
# Check if a list is empty by its length
if len(my_list) == 0:
    pass  # the list is empty
# Check if a list is empty by direct comparison (only works for lists)
if my_list == []:
    pass  # the list is empty
# Check if a list is empty by its type flexibility **preferred method**
if not my_list:
    pass  # the list is empty

Example 2: py create empty list

# declare list 
a = []          
  
print("Values of a:", a) 
print("Type of a:  ", type(a)) 
print("Size of a:  ", len(a))      

# Output:
# > Values of a: []
# > Type of a:   <class 'list'>
# > Size of a:   0

Example 3: python empty list

if not a:
  print("List is empty")

Example 4: declare an empty list in python

num = list()